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The City of Portland, Oregon

Portland Water Bureau

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Mt. Tabor Reservoirs Preservation Project

  • Autumn Fog Beyond Reservoir 5 © Andrew Haliburton

  • Mt. Tabor Gatehouse 5 © Andrew Haliburton

  • Snow on Mt. Tabor Reservoir 5 © Andrew Haliburton

  • Nightfall on Reservoir 5 © Andrew Haliburton

  • Reservoir 5 fence and gatehouse


Last updated: July 9, 2019

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Reservoir 1 has been drained. Crews will clean the existing reservoir surface, demo and replace failed concrete, and fill voids using concrete grout. This project will help to protect the structural integrity of the reservoir. Work will begin in April 2019 and be completed by the end of the summer.

What to Expect During Construction:

    • Equipment and material deliveries will enter the park from the SE Salmon St. entrance.
    • Approximately 150 truckloads of concrete will be needed for this project.
    • Materials will be stored on-site near Reservoir 1.
    • A portion of the Blue Trail around Reservoir 1 will be closed during construction. Watch for detour signs.
    • Work hours will be 7 a.m. to 6 p.m. Monday through Friday. If needed, work is allowed during the same hours on Saturdays.

Mt Tabor Park Map showing reservoir locations

Contact Rhetta Drennan, Portland Water Bureau Senior Outreach Representative, at 503-823-3028 or by email with questions or concerns.


Project Overview

The City of Portland has committed $4 million over a four-year period (2016-2020) for maintenance, repair, and preservation work identified in the Mt. Tabor Historic Structures Report (written in 2009 and updated in 2016). The reservoirs are part of the Mt. Tabor Park Reservoirs Historic District, which is located within the historic Mt. Tabor Park District. Both the Reservoir District and Mt. Tabor Park District are listed on the National Register of Historic Places. 

While the three open reservoirs at Mt. Tabor no longer supply drinking water, they continue to be important assets to the City of Portland. The iconic views of the reservoirs and across the reservoirs to the city beyond are an integral part of the historic and treasured Mt. Tabor Park.  These historic views, together with these historic structures, are protected by local and state historic resource regulations.

The commitment to carry out preservation work at Mt. Tabor was born out of Portland City Council Resolution #37146 (July 2015), which was jointly crafted by the Portland Water Bureau and concerned citizens from the Mt. Tabor Neighborhood Association. The work provided for in this resolution helps the City affirm the community’s shared responsibility to care for publicly owned historic resources and public spaces. This resolution recognizes that these are important City assets and honors the City’s policy that its capital assets should be maintained, where applicable, during the assets’ useful life (FIN 6.11). 

In the years leading up to 2020, two projects will unfold in the Reservoir District on Mt. Tabor:

1) The Preservation Construction Project  addresses structures and the preservation maintenance they need; and

2) The Interpretive Program which crafts educational materials to capture the intriguing story of the reservoirs and their historic role in Portland’s drinking water system.

A project team comprised of Portland Water Bureau staff, Portland Parks staff, representatives of the Mt. Tabor Neighborhood Association, and representatives of the Friends of Mt. Tabor Park are working together to implement the work related to both the Mt. Tabor Reservoirs Historic Preservation Project and the Mt. Tabor Historic Interpretive Program.


Reservoir Management

Learn about the maintenance plan being developed for the Mt. Tabor reservoirs.